Harrow.



Patented Sept. 5,1899.

No. 632,223. r

H. ADLER.

HARBOW. (Application filed May N3. 1899.')

(No Model.)

IITNESSES 2 f INVENTOR. M. J/E 62262 ERS ca. menu-mo. wumnawu. n: c.

UNrTEn STATES PATENT QEEIQE.

HENRY ADLER, OF ANTHON, IOVA.

HA'RROW.

SPECIFICATION forming part of Letters Patent No. 632,228, dated September 5, 1899.

Application filed May 13, 1899. Serial No. 716,782. N model-l To all whom it may concern:

Be it known that I, HENRY ADLER, a citizen of the United States, residing at Anthon, in the county of Woodbury and State of Iowa, have invented certain new and useful Improvements in Harrows; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon,which form a part of this specification.

This invention relates to harrows; and the purpose of the same is to so arrange and connect the tooth-beams that any number of the same may be used and harrows of diiferent sizes quickly adjusted, and, further, to accommodate a detachment of the individual tooth-beams for the purpose of sharpening the teeth without disconnecting the latter.

The invention primarily consists of a toothbeam having couplings secured thereto near opposite ends and projecting in transverse directions, the forward ends of the said couplings being bent downward and terminating in hooks and the rear ends slightlyprojecting rearward and provided with eyes, whereby similar couplings on adjacent beams may be connected up in series and provide the harrow with an extended surface-treatin g capacity.

The invention further consists of a toothbeam having couplings with front deflected ends provided with hooks and rearwardly-extended ends supplied with eyes, whereby a number of the said beams may be attached to each other and arranged obliquely in such manner that the teeth of the succeeding beams will be in alinement with the space between the teeth of the beams next inadvance.

The invention furthermore consists of the details of construction and arrangement of with the arrangement of the improved harrow, as a single, double, orfour-horse device of the character, and in changing from one form to another the harrow-sections or the number of tooth-beams employed will be increasedor decreased, and in the accompanying drawings only one section is shown for the purpose of illustrating the features of the invention. The draft-beam 1 is supplied with eyes 2, which are located at the rear of the same and intended to receive the means of removably fastening the parts composing the harrow and which will be now'fully described.

The present form of harrow is made up of a series of tooth-beams 3, having therein vertically-disposed straight teeth 4 of ordinary form. These teeth are arranged in regularsuccession in the beams 3 and, as usual in devices of this nature, are adapted to be sharpened when dulled by use. This particular form of tooth 4:, however, need not be Wholly relied upon to make the harrow effective, as other well-known forms of teeth might be substituted therefor, and it is intended that such replacement of the teeth will be adopted when occasion may require. Each toothbeam has a pair of couplings 5 secured thereto and located near the opposite ends. Each coupling is formed of a suitable metal strip with a straight rear portion 6 and a front lateral deflected end 7, depressed and rebent over or above a portion of the depression to form a hook 8, as more clearly shown in Fig. 2. The greater part of the coupling projects forwardly of its beam 3, and the rear end of the body 6 is slightly projected and formed with an eye 9. In applying the couplings 5 to the beams 3 they are preferably sunk or let into transverse recesses,and when applied and secured the said couplings are in parallel relation, particularly as to their lateral deflection. The front terminating ends of the couplings are preferably reduced to facilitate the formation of the hooks 8, and the latter stand straight in a transverse direction or in planes parallel with the body portion 6.

In assembling the parts of the harrow the first beam 3 is tilted at an angle to permit the hooks 8 to enter the eyes 2, and the rearward succeeding beams are in like manner tilted and connected to the eyes 9 at the rear ends of the couplings. The lateral deflection of the couplings is such that the several beams will be disposed obliquely, but in parallel relation, so as to bring the teeth 4 alternately in alinement with the spaces between said teeth in the beam next in advance. The number of beams connected up and consequently extending in a rearward direction will depend entirely upon the draft power or the work to be done, and in arranging for a four-horse harrow, as previously indicated, a number of space-beams 3 will be similarly attached to a single draft-beam 1.

It will be observed that the system of coupling adopted in the present device will provide means for covering or treating a very large or extended ground surface, and the harrow maybe taken to a field or other tract to be treated in sections and afterward connected up. Furthermore, the flexible joint between each pair of beams will allow the harrow to conform to irregularities in the surface over which it moves and thoroughly treat all ground covered alike.

Another advantage arising from the present construction is that the several beams can be easily detached and the teeth sharpened Without removal from said beams. This will materially lessen the time and labor usually involved for such operation.

The parts all being simple in their nature will make the cost of manufacture very much reduced and very little, if any, in excess of that ordinarily required in the construction of the common form of harrow.

\Vhile the preferred form of the harrow has been illustrated and is descriptively disclosed, it will he obviously apparent that changes in the proportion, dimensions, and minor details of construction might be resorted to without departing from the nature or spirit of the invention.

Having thus described the invention, what is claimed as new is-- 1. A harrow comprising a draft-beam and a series of tooth-beams having couplings with deflected forward ends and eyes at the rear ends, whereby the several tooth-beams may be connected to the draft-beam and to each other and disposed obliquely to bring the teeth in alternate alinement with the spaces in the preceding tooth-beams.

2. A tooth-beam for a harrow having couplings secured thereto with forward deflected ends terminating in hooks and eyes in the rear ends.

3. A harrow comprising a main draft-beam with eyes afiixed thereto and a series of toothbeams having couplings adjacent to the opposite ends of each, said couplings being provided with forward laterally-deflected ends terminating in hooks and rearwardly-projecting ends formed with eyes, the rear body portions of the couplings being straight and the hooks on the forward ends of the deflections standing in parallel relation to the said body portions.

In testimony whereof I ailix my signature in presence of two witnesses.

HENRY ADLER.

\Vitnesses:

CHAS. H. HALL, II. B. \VALLING. 

